46 lines
616 B
ArmAsm
46 lines
616 B
ArmAsm
#
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! $Source: /cvsroot/tack/Ack/plat/linux386/libsys/_syscall.s,v $
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! $State: Exp $
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! $Revision: 1.1 $
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! Declare segments (the order is important).
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.sect .text
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.sect .rom
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.sect .data
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.sect .bss
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.sect .text
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EINVAL = 22
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! Perform a Linux system call.
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.define __syscall
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__syscall:
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move.l (4, sp), d0
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move.l (8, sp), d1
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move.l (12, sp), d2
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move.l (16, sp), d3
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trap #0
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tst.l d0
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bmi 1f
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rts
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1:
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neg.l d0
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! It just so happens that errnos 1-34 are the same in Linux as in ACK.
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cmp.l #1, d0
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blt 2f
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cmp.l #34, d0
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bgt 2f
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move.l d0, (_errno)
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3:
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move.l #-1, d0
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rts
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2:
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move.l #EINVAL, (_errno)
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bra 3b
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